Disk cultivator.



A. ADDISON.

DISK CULTIVATOR.

APPLICATION FILED MAR. 1|, l9l5.

2 SHEETS-SHEET I.

I 1 Immmm IH I l IHIIIIHHIW Patentd May 23,1916.

ANDREW ADDISON, or TRAER, IOWA.

DISK GULII'IVATOR.

To all whom it may concern Be it known that 1, ANDREW ADDISON, a citizen ofthe United States, and resident of Traer, in the county of Tama and State of Iowa, have invented a certain new and useful Disk Cultivator, of which the" following is a specification. v

The object of my invention is to provide a disk cultivator of simple, durable and in+ expensive construction.

A further object is to provide a disk cultivator so constructed and arranged as to permit cultivation reasonably-close to a'row of corn or the like without cutting the corn roots.

A further object is to provide such a cultivator so constructed as to permit the land to be cultivated and left in substantially level condition without a ridge or a ditch next to the corn or in the middle of the row.

Still a further object-is to provide such a cultivator having the disk so mounted as to permit adjustment, whereby vafter cultivation, the land can be left in practically any desired condition, either substantially level or inclined toward or from the hills.

Myinvention consists in the construction,

arrangement, and combination of the vari-' ous parts of the device whereby the ob ects contemplated are attained as hereinafter more fully set forth, pointed out in my ing drawings, in which: V

Figure 1 shows a top or plan view of a cultivator embodying my invention. Fig. 2 shows a rear elevation of one of the wheels. Fig. 3 shows a side elevation of one of the disks illustrating the method of claims and illustrated in the accompanymounting the same on the'supporting bar,

taken on the line 33 of Fig. 4.'- Fig. 4

shows a top or plan view of one of the disks,

and Fig. 5 shows a detail sectional view taken on the line 55 of Fig. '3.

In the exemplification of my invention, illustrated in the accompanylngdrawings, I have used the reference numeral 10 to indicate generally a transverse frame memher having at its ends the bearings 11. Mounted in the bearings 11 are shafts12, having at their lower endsthe right angled spindles 13, on which the wheels 14 are rotatably mounted.

On the upper ends of the member 11 are forwardly extending arms 15, each of which is pivoted to one end of a transverse rod 16. Pivoted to the rod 16, near the central por- Specification of Letters Patent.

Application filed Mar-ch 11, 1915. 1 Serial No. 13,738.

Patented May 23, 1916.

tion thereof, arespaced rearwardly extending levers 17. The levers 17 are pivoted between the1r ends on the transverse frame member 10, and have the foot rests 18 at their rear ends. A longitudinal frame member 19 supports a seat 20, suitably mounted to permit the driver to control the levers 17 with his feet.

Spaced from the frame member 10 at a suitable distance in front of said member, is

a frame member 21'. Supported on the meme bers 21 and 10 area plurality of frame me1nbers 22. Bolted or otherwise suitably con- 7 nected to the frame members 22 are bars .28. As shown in Fig. 1, my improvedcultivator is. builtfor cultivating two rows/ofcorn or the like. y

In such a cultivator, there are four sets of the frame members 22. The bars 23 of the end members are inclined from their outer ends inwardly and rearwardly, as

bars 24, in the rear of the middle bars 23,

and forwardly. frame members 22 are spaced from the respeotlve ad acent inner pairs of frame members 22. The two middle pairs of frame members 22 are adapted to travel between two rows of corn or the like.

I provide-a plurality of disks 25 mounted are inclined from their inner endsoutwardly The two outer pairs of r onspindles 2.6, on which are upwardly ex tending shanks 27 mounted in yokes or brackets 28, which have bolt members 29 formed thereon and extended through the bars 28 or 24 as the case may be, and held in position by nuts 30. Spaced blocks 31 engage the bars 23 or 24 asthe casemay be and the inner surfaces of the shanks 27 It will readily be seen that by'loosening the nuts 30 the shanks 27 may be 'moved long itudinally or rotated for securing the disks" in a great variety of positions with relation to the bars on which they are mounted.

In'the' practical operation of my improved disk cultivator, it will be noticed that one section of'the disks travels behind another section, as illustrated in Fig. 1.

\Vith the ordinary disk cultivator considerable difliculty is experienced due to the fact that the cultivator lacks flexibility of control, whereby the land can be left in any condition desired. The disks are so arranged that the disks of the front sections have their cutting edges placed farthest from the rows for causing as little injury as possible to the roots of the corn or the like. It will readily be seen that with the d sk, setrin position as shown in Fig. l, the

forward disks will loosen the dirt and throw avoided by the use of the' double sections.

. On the other hand it is, in many instances,

undesirable to make a ridge along the corn row, and yet with a disk plow having the arranged like my rearward sections, it is lmppsslble to plow the corn without making a ridge along the row. While it is possible, with a "disk arranged like mine to leave the ground substantially level, it is also possible to ridge the ground along the row and to ridge it in the center thereby givmg the possibility for avariety of cultivation, not attained with other "disks.

It will be seen that by properly adjusting the various disks 25, practically any lay can be given to the cultivated ground.

'With many disks it is necessary to go through the corn twice in order to put the ground in the proper condition, while in my disk a single cultivation will put the ground in the condition desired.

My disk is especially advantageous where it is desired to cut up and stir the dirt and leave a loose mulch on top without leaving any grooves or ridges. It is believed that i "this is the only disk where the ground can 7 frame members, angularly' "wheels mounted on the rearward of said Qopterot thin patent may be obtained 1 be left in this condition after one plowing.

My device'can readily be adapted for use I,

as a one row wheel dodge; cultivator.

Itfwill be understoofdthat some changes may be made in the construction, and arrangement ofmy improved disk cultivator, without departing from its essential features and purposes and it is, my intent to cover by this application any such changes which my be included within the scope of my claims.

1 claim as my invention '1. In*a disk cultivator, spaced transverse adjustable members, four transversely spaced frame units secured at their forward ends to the forward transverse frame member and extending rearwardly in the machine and having diverging portions secured to said transverse frame member, each outer unit having a forward frame member connecting the sides of the unit and inclined from their inner ends forwardly and outwardly, and having rearward frame members connecting the sides of said unit and extending from their inner ends rearwardly and outwardly, the two inner frame units having forward frame members connecting their sides and extending from their ends rearwardly and outwardly, and having rearward frame units connecting their sides and extending-from their inner ends forwardly and outwardly, disks on the forward inclined frame members of the outer units and on the rearward inclined members of the inner unit arranged to throw dirt outwardly, disks on the rearward inclinedmem- -bers of the inner unit for throwing dirt inwardly, the two outer units being spaced from the two inner units to pass on opposite sides of rows of corn.

2. In a disk cultivator, spaced transverse frame members, angularly adjustable wheels mounted on the rearward of said members, four transversely spaced frame units secured at their forward ends to the forward transverse frame member and extending rearwardly in the machine and having diverging portions secured to said transverse frame member, each outer unit having a forward frame member connecting the sides of the unit and inclined from their inner ends forwardly and outwardly, and having rearward. frame members connecting the sides of said unit and extending from their inner ends rearwardly and outwardly, the two inner frame units having forward frame members connecting their sides and extending from their ends rearwardly and outwardly, and having rearward frame umts'connectmg their sides and extending from their inner ends forwardly and outwardly, disks on the forward inclined. frame members of the outer units and on the rearward inclined members of the inner unit arranged to throw dirt out wardly, disks on the rearward inclined members of the outer unit and on the forward inclined members of the inner unit for throwing dirt inwardly, the two outer units being spaced from the two inner units to pass on opposite sldes of rowsof corn.

Des Moines, Iowa, February 24, 1915.

. V ANDREWV ADDISON. Witnesses:

ARTHUR THOMAS, B. FRANK THOMAS.

or five cents each, by addressing the commissioner oflrat cizta;

Washington, D. 0." I 

